Graduate College appoints Brian Smith as associate dean of graduate initiatives

Smith will lead international initiatives at the college to enhance ASU’s global presence


July 12, 2017

Brian H. Smith, an accomplished researcher in behavioral neuroscience and professor at the School of Life Sciences, has been named associate dean of graduate initiatives in the Graduate College at Arizona State University.

In his new position, Smith will lead international initiatives at the Graduate College to enhance ASU’s global presence. Brian Smith Brian Smith will lead international initiatives at the Graduate College to enhance ASU’s global presence. Download Full Image

“Dr. Smith clearly has the skills necessary to deepen the quality and scope of ASU’s graduate academic programs, while advancing graduate initiatives,” said Alfredo Artiles, dean of the Graduate College. “I’m thrilled he has agreed to join the leadership of the Graduate College.”

Smith joined ASU as faculty in the School of Life Sciences at Arizona State University in July 2005, after having spent 15 years as faculty at Ohio State University’s Department of Entomology. In 2006, he led the development of a new doctoral program — Interdisciplinary Graduate Program in Neuroscience, in partnership with Barrow Neurological Institute. He then served as director of the School of Life Sciences for three years and as a leadership fellow in the Office of the Provost, where he has worked to help advance development of online programs at ASU. Under direction of the provost, he recently completed work on a new undergraduate program in neuroscience, set to launch this fall semester.

During his research career, he has mentored many undergrads, 15 graduate students and more than 20 postdoctoral researchers who have gone on to teaching and research positions in the United States, France, Germany, Argentina, Israel and the United Kingdom.

Collaboration with researchers from disciplines as diverse as mathematics, chemistry, engineering and art has been central in his research and administrative work: “I find collaboration allows me to ask questions at different levels,” Smith said.

“By 2030 the number of people in the world that will require a university education will more than double. This presents an opportunity for ASU to address a growing demand for graduate programs by actively engaging with other programs in the U.S. and across the world,” Smith said.

As associate dean, Smith will foster initiatives to advance strategic graduate program development.

Smith’s own research has been continuously funded since 1991 by the National Institutes of Health, National Science Foundation, Defense Advanced Research Projects Agency, U.S. Department of Agriculture and the Human Frontiers Science Program out of the European Community.

Additionally, Smith serves as a fellow in PLuS Alliance, which is a consortium between ASU, King’s College London and the University of New South Wales in Sydney, and he is a senior fellow of the Zukunftskolleg at the University of Konstanz in Germany.

An author of more than 100 peer-reviewed journal publications, Smith is also an elected fellow of the American Association for the Advancement of Science. He has received a Fulker Award from Behavior Genetics Association and a National Institute of Mental Health Nation Research Service Award.

Smith’s appointment took effect July 1.

ASU/TGen-led study identifies source of mutation in Alzheimer’s disease

ANK1 gene expression change found in brain's microglia cells associated with neuroinflammation


July 12, 2017

Researchers led by Arizona State University and the Translational Genomics Research Institute (TGen) have identified altered expression of a gene called ANK1, which only recently has been associated with memory-robbing Alzheimer’s disease, in specific cells in the brain.

Using an extremely precise method of isolating cells called “laser capture microdissection,” researchers looked at three specific cell types — microglia, astrocytes and neurons — in the brain tissue of individuals with a pathological diagnosis of Alzheimer’s disease, and compared them with brain samples from healthy individuals and those with Parkinson’s disease. Diego Mastroeni, an assistant research professor at Biodesign’s ASU-Banner Neurodegenerative Disease Research Center, and the study’s lead author. Download Full Image

Following sequencing of each of these cell types, the ASU/TGen-led team found that altered ANK1 expression originates in microglia, a type of immune cell found in the brain and central nervous system, according to the study published today in the scientific journal PLOS ONE.

“Although previous genetic and epigenetic-wide association studies had shown a significant association between ANK1 and AD, they were unable to identify the class of cells that may be responsible for such association because of the use of brain homogenates. Here, we provide evidence that microglia are the source of the previously observed differential expression patterns in the ANK1 gene in Alzheimer’s disease,” said Diego Mastroeni, an assistant research professor at Biodesign’s ASU-Banner Neurodegenerative Disease Research Center, and the study’s lead author.  

All three of the cell types in this study were derived from the hippocampus, a small looping structure shaped like a seahorse (its name derives from the Greek words for horse and sea monster). The hippocampus resides deep inside the human brain and plays important roles in the consolidation of both short- and long-term memory, and in the spatial memory that enables the body to navigate.

In Alzheimer's disease — and other forms of dementia — the hippocampus is one of the first regions of the brain to suffer damage, resulting in short-term memory loss and disorientation. Individuals with extensive damage to the hippocampus are unable to form and retain new memories.

“Using our unique data set, we show that in the hippocampus, ANK1 is significantly increased four-fold in Alzheimer’s disease microglia, but not in neurons or astrocytes from the same individuals,” said Winnie Liang, an assistant professor, director of TGen Scientific Operations and director of TGen’s Collaborative Sequencing Center. “These findings emphasize that expression analysis of defined classes of cells is required to understand what genes and pathways are dysregulated in Alzheimer’s.”

Alzheimer’s features many signs of chronic inflammation, and microglia are key regulators of the inflammatory cascade, proposed as an early event in the development of Alzheimer’s, the study said.

Because the study found that ANK1 also was increased two-fold in Parkinson’s disease, “these data suggest that alterations in ANK1, at least in microglia, may not be disease-specific, but rather a response, or phenotype associated with neurodegeneration … more specifically, neuroinflammation.”

More than 5 million Americans have Alzheimer’s, an irreversible and progressive brain disorder that slowly destroys memory, thinking skills and eventually the ability to conduct even the simplest of tasks. For most patients, symptoms first appear in the mid-60s. For older Americans, it is the third-leading cause of death, following heart disease and cancer, according to the National Institutes of Health.

“The success of this, and many other studies, owes a great deal to the support and collaborative nature of the people of the Arizona Alzheimer’s Consortium. The results obtained in this work emphasize the importance of methods that enable us to characterize the molecular profile of defined cells, either as a group or as single cells, that have been defined by any of several means,” said Paul Coleman, research professor at Biodesign’s ASU-Banner Neurodegenerative Disease Research Center, and the study’s senior author.

Eric Reiman, director of the Arizona Alzheimer's Consortium and Clinical Director of Neurogenomics at TGen, said: “This study demonstrates the value of bringing together talented researchers from different disciplines and organizations to advance the scientific fight against Alzheimer’s disease.”

Also contributing to this study were: Banner Sun Health Research Institute; University of Exeter Medical School; and the Institute of Psychiatry, Psychology and Neuroscience at King’s College London.

The study — ANK1 is up-regulated in Laser Captured Microglia in Alzheimer’s brain; the importance of addressing cellular heterogeneity — was funded by the Arizona Biomedical Research Commission, and the Arizona Alzheimer’s Consortium. The consortium’s annual scientific symposium was May 18 at Mayo Clinic Hospital in Phoenix, where the authors presented details of these findings.  

Media contact: Joe Caspermeyer, 480-727-9577, Joseph.Caspermeyer@asu.edu